Alpha Alpha HE25 Manuel utilisateur

Supplementary LPG Boiler

Instructions

Alpha HE25 and HE33

Alpha HE25 G.C. No. 47 532 42

Alpha HE33 G.C. No. 47 532 44

British Gas

Service Listed

For use with LPG (Propane) only

Leave these instructions with the User

Wall Mounted, Fan Assisted, Room Sealed, Gas Fired,

High Efficiency Condensing Boiler Range

Nepicar House, London Road,

Wrotham Heath, Sevenoaks,

Kent TN15 7RS

For Technical help or for Service call ...

ALPHA HELPLINE

Tel: 0870 3001964

2Alpha HE25 and HE33 LPG Supplement

37.0

14.8

13.2

2.9

144

37.0

14.8

180

37.0

14.8

9.9

2.2

144

37.0

14.8

180

1 INTRODUCTION

This supplement is for the LPG model of the boiler; it must be read in conjunction with the 'Installation and Servicing

Instructions' supplied with the boiler and provides the extra information which is particular to LPG.

The Alpha HE25 and HE33 are high efficiency condensing combination boilers providing both central heating and domestic

hot water at mains pressure.

The boilers are designed for use with a fully pumped sealed and pressurised heating system using only PROPANE gas.

2 TECHNICALDATA

2.1 PERFORMANCE - PROPANE GAS

MAX.

27.4

93 400

25.0

85 300

24.0

81 900

32.3

12.92

1.06

37.4

MIN.

16.3

55 600

14.5

49 500

14.0

47 800

11.6

4.64

0.63

22.2

MAX.

27.4

93 400

25.0

85 300

32.3

12.92

1.06

37.4

MIN.

11.4

38 900

9.9

33 800

5.6

2.24

0.5

17.6

Room sealed chamber

panel fitted

Room sealed chamber

panel fitted

Central Heating

Heat Input kW

(Gross) Btu/h

Heat Output (condensing) kW

(50°C/30°C) Btu/h

Heat Output (non-condensing) kW

(80°C/60°C) Btu/h

Burner Pressure mbar

Settings in wg

Gas Supply Pressure (LPG) mbar

in wg

Gas Rate (LPG) m³/h

ft³/h

CH Water Temp. (Approx. max.) °C

°F

Domestic Hot Water

Heat Input kW

(Gross) Btu/h

Output to Water (modulating) kW

Btu/h

Burner Pressure mbar

Settings in wg

Gas Supply Pressure (LPG) mbar

in wg

Gas Rate (LPG) m³/h

ft³/h

Flow Rate at 35°C Rise L/min

gal/min

Outlet Water Temp. (Approx. max.) °C

°F

2.2 PERFORMANCE - PROPANE GAS

MAX.

36.6

124 800

33.2

113 300

32.0

109 200

32.1

12.84

1.43

50.4

MIN.

22.4

76 400

19.7

67 200

19.2

65 500

11.1

4.44

0.88

31.0

MAX.

36.6

124 800

33.2

113 300

32.1

12.84

1.43

50.4

MIN.

15.2

51 800

13.2

45 000

4.7

1.88

0.6

21.1

Room sealed chamber

panel fitted

Room sealed chamber

panel fitted

Central Heating

Heat Input kW

(Gross) Btu/h

Heat Output (condensing) kW

(50°C/30°C) Btu/h

Heat Output (non-condensing) kW

(80°C/60°C) Btu/h

Burner Pressure mbar

Settings in wg

Gas Supply Pressure (LPG) mbar

in wg

Gas Rate (LPG) m³/h

ft³/h

CH Water Temp. (Approx. max.) °C

°F

Domestic Hot Water

Heat Input kW

(Gross) Btu/h

Output to Water (modulating) kW

Btu/h

Burner Pressure mbar

Settings in wg

Gas Supply Pressure (LPG) mbar

in wg

Gas Rate (LPG) m³/h

ft³/h

Flow Rate at 35°C Rise L/min

gal/min

Outlet Water Temp. (Approx. max.) °C

°F

Alpha HE25 Alpha HE25

Alpha HE33 Alpha HE33

Alpha HE25 and HE33 LPG Supplement

3 BOILER LOCATION

The boiler must not be installed in a room or internal space below ground level, e.g. in a basement or cellar, except where at

least one side is open to ground level.

4 INSTALLATION

In addition to the regulations and requirements stated in the Installation and Servicing instructions, the boiler must be installed

in accordance with BS 5482:1 - The Installation of Propane Burning Appliances in Permanent Dwellings.

5 COMMISSIONING

6 PARTS LIST

Only the main burner injectors are special to Propane boilers. For other 'Short List Spare Parts', refer to the Installation and

Servicing instructions supplied with the boiler.

Propane components

Main injector kit (15 x 0.8 mm injectors plus washers)

Injector manifold complete with injectors HE25

HE33

Qty.

Alpha Part No.

3.016466

1.022379

1.022380

The boiler has been tested and factory set for use with Propane gas and it should only be necessary to ensure the correct gas

supply pressure of 37 mbar is available.

2.3 GAS SUPPLY

The Alpha HE25 boiler requires a gas rate of 1.90 kg/h (4.20 lb/h) or 3.7 litres/h of liquid gas.

The Alpha HE33 boiler requires a gas rate of 2.56 kg/h (5.65 lb/h) or 5.0 litres/h of liquid gas.

The supply pipes must be capable of delivering this quantity of gas in addition to the demand from any other appliances in the

house. The boiler requires at least a 22 mm gas supply pipe.

The complete installation must be tested for gas soundness against leakage.

The local Propane gas supplier should be consulted, at the installation planning stage, in order to establish the availability of an

adequate supply of gas.

Installation pipes, cylinders and pressure regulators should be fitted in accordance with BS 5482:1. Bulk tank installation must

comply with the requirements of the Home Office code of practice for the storage of liquefied petroleum gas at fixed installations.

7 SERVICING

When servicing or replacing boiler components follow the procedures as described in the main Installation and Servicing

instructions supplied with the boiler.

Remembering the parts special for Propane boilers and the burner pressures special to Propane boilers given in this leaflet.

DETAILS OF BOILER INSTALLATION

Date of Installation: ......................................................................

Name of Installer:.........................................................................

Address: ......................................................................................

....................................................................................................

Postcode: ....................................................................................

Telephone No: .............................................................................

Boiler Serial Number: (LPG) ........................................................

(see inside controls panel hinged cover)

08/07/D212

Part No. 1.026218

Rev.15.025735/000

Instructions compiled and designed by Publications 2000 - Tel: (01670) 356211

These instructions have been carefully prepared but we reserve the right to

alter the specification at any time in the interest of product improvement.

Alpha Therm Limited.

NepicarHouse,LondonRoad,WrothamHeath,

Sevenoaks, Kent TN15 7RS

Tel: 0870 3001964

email: [email protected]

website: www.alpha-boilers.com

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